Screen adjusting apparatus and method for use in multi-display unit

ABSTRACT

There is provided a screen adjusting apparatus and method of a multi-display unit, in which a plurality of image display panels are selected and a screen display state of the selected image display panel is adjusted in a single operation.

TECHNICAL FIELD

The present invention relates to a screen adjusting apparatus and methodfor use in a multi-display unit, and more particularly, to a screenadjusting apparatus and method for use in a multi-display unit, in whicha screen display state of a specific panel is manipulated convenientlyin case a plurality of flat-panel display units, such as LCD and PDP,are coupled. Further, the present invention relates to a method foradjusting an electronic equipment, in which a specific electronicequipment is conveniently selected and manipulated in case a pluralityof homogenous equipments are used at the same time.

BACKGROUND ART

A multi-display unit is an equipment which uses a plurality ofsmall-sized display units at the same time and can be recognized as asingle large-sized screen or integrated individual screens.

As a general flat-panel display unit becomes larger in size, its pricerises rapidly. For example, 15-inch LCD panel costs 349 US dollars and20-inch LCD panel costs 1,299 US dollars. Although a screen sizeincreases slightly, the unit cost rises rapidly.

This is because an additional cost increases due to a technicaldifficulty and an increase of defective proportion, which are caused byin an additional formation of a driving circuit for forming largepixels, an addition of a manufacturing process and an additionalformation of gate lines and data lines for large-sized monitors.

In order to solve these problems, there have been proposed variousembodiments, in which a plurality of small-sized flat-panel displayunits are closely attached to form a large-size screen, or differentdisplay windows are provided on a small-sized panel. Such technologiesare disclosed in U.S. Pat. Nos. 6,343,006 and 5,687,939.

However, technical spirits of these conventional technologies are tomake it possible for a user to perform multi-tasking while watching aplurality of screens by only assembling a plurality of flat-paneldisplay units as a single apparatus. Therefore, the conventionaltechnologies have an inconvenience in that size or brightness of thescreen are adjusted by individually controlling only the correspondingdisplay unit in order to manipulate the respective small-sized displayunits.

Hereinafter, a construction of a conventional multi-display unit will bedescribed in brief.

FIG. 1 is a perspective view of a conventional multi-display unit.

Referring to FIG. 1, the conventional multi-display unit includes afirst display unit 1, a second display unit 11, a first manipulationunit 2 for adjusting a screen display state of the first display unit 1,and a second manipulation unit 12 for adjusting a screen display stateof the second display unit 11.

The conventional multi-display unit further includes an input cable 4through which external signals, such as power, a video signal and amanipulation signal, are inputted to the first and second display units1 and 11.

FIG. 2 is a block diagram showing the detailed construction of theconventional multi-display unit and a driving method thereof.

Referring to FIG. 2, each of the display units 1 and 11 includes a powersupply unit 31, an analog-to-digital converter (hereinafter, referred toas an ADC) 33, and a microprocessor 32. The power supply unit 31receives a power inputted through the input cable 4 and converts it intoa current suitable for a driving of the flat-panel display unit. The ADC33 receives a video signal through the input cable 31 and converts itinto a digital signal. The microprocessor 32 receives a manipulationsignal through the input cable 4 in order for manipulating the displayunit or a manipulation signal outputted from one of the manipulationunits 2 and 12.

In addition, the conventional multi-display unit further includes avideo scaler 34, a driver 35, and an image display panel 36. After theADC 33 performs a sampling to convert the video signal into the digitalsignal, the video scaler 34 adjusts an image state displayed on theimage display unit. After the video scaler 34 adjusts the display state(e.g., scale), the driver 35 processes the adjusted signal into a signalto be displayed on the image display panel 36.

In addition to the above necessary elements, an electrically erasableand programmable read only memory (EEPROM) for storing data and aplurality of filters for enhancing the reliability of signal processingmay be further used.

In case the video signal is inputted in a form of digital signal, theADC 33 may be unnecessary. For example, a video signal inputted througha digital video interface input need not pass through the ADC 33.Meanwhile, in case a video signal is inputted through an RGB inputterminal or a component input terminal, the video signal may beprocessed after it is converted into a digital signal by means of theADC 33.

The power supply unit 31 supplies an external power to the ADC 33, thevideo scaler 34, the driver 35 and the image display panel 36 in orderfor the signal processing. The microprocessor 32 controls the ADC 33,the video scaler 34, the driver 35 and the image display panel 36, suchthat control states of the respective units are adjusted for the signalprocessing.

In addition, in case two or more monitors are used, there are furtherprovided a substrate for driving the respective monitors and a pluralityof parts individually formed on the substrate.

Since the construction of the second display unit 11 is identical tothat of the first display unit 1, a detailed description about thesecond display unit 11 will be omitted.

Meanwhile, the second display unit 11 is formed with the same parts andsame manner as the first display unit 1 and configured to receive thepower, the video signal and the manipulation signal. In other words, thesecond display unit 11 includes the terminals for receiving theplurality of signals, the parts for processing the signals, the powersupply unit, and the microprocessor. Accordingly, the plurality of sameparts, particularly the power supply unit and the microprocessor, areprovided individually. As a result, the conventional multi-display unithas a disadvantage in view of costs.

In addition, since the manipulation units 2 and 12 individually adjustbrightness, size and position of the individual display units 1 and 11,a batch adjustment is impossible. Therefore, there is a disadvantage inthat a user must take an effort to adjust the same condition by means ofthe respective manipulation units 2 and 12, resulting in the userinconvenience.

For example, the manipulation units 2 and 12 are individually configuredin the respective small-sized display units 1 and 11 and the userindividually manipulates the manipulation units 2 and 12 in order toadjust size and brightness of the screen of the display units 1 and 11.Therefore, it is very inconvenient for the user. Further, since themanipulation units are individually used to adjust the states of thedisplay units 1 and 11, it is impossible to adjust the states of all thedisplay units at one time.

Further, since one microprocessor 32 is applied to one display unit, anentire cost of the display unit increases. Therefore, there is a problemin that it is impossible to make the most of an advantage that a cost isdecreased when a plurality of small-sized display units are used.

DISCLOSURE OF THE INVENTION

Accordingly, the present invention is directed to a screen adjustingapparatus and method of a multi-display unit that substantially obviatesone or more of the problems due to limitations and disadvantages of therelated art.

An object of the present invention is to provide a screen adjustingapparatus and method of a multi-display unit, in which screen displaystates of all small-sized display units are manipulated conveniently incase a plurality of small-sized display units are coupled and used as asingle large-sized display unit.

Another object of the present invention is to provide a screen adjustingapparatus and method of a multi-display unit, in which the number ofbuttons for adjusting the respective screens of small-sized displayunits is decreased, such that a manufacturing cost of the display unitis reduced and an outer appearance of the multi-display unit looks moreelegant.

According to one aspect of the present invention, a screen adjustingapparatus for use in a multi-display unit includes: a plurality of imagedisplay panels forming the multi-display unit as one assembly; aselection button for selecting a specific image display panel; amanipulation button for adjusting a screen of the selected image displaypanel; and a switching means for receiving a selection signal from theselection signal to select the image display panel and transmitting amanipulation signal of the manipulation button to the selected imagedisplay panel.

According to another aspect of the present invention, a screen adjustingapparatus for use in a multi-display unit includes: a plurality of imagedisplay panels forming the multi-display unit as one assembly; amanipulation button for transmitting a manipulation signal in order toadjust a screen display state displayed on the image display panels; aselection button for selecting a specific image display panel; aswitching means for relaying the manipulation signal to the specificimage display panel in response to the selection signal; and amicroprocessor for processing the manipulation signal outputted from themanipulation button and transmitting the processed manipulation signalto the switching means.

According to further another aspect of the present invention, a screenadjusting method of a multi-display unit having a plurality of imagedisplay panels includes the steps of: selecting one or more specificimage display panels among the plurality of image display panels;changing a display state of an indication means of the selected imagedisplay panel; selecting a specific image display panel desired by auser according to the display state of the indication means; andadjusting a screen display state of all selected image display panels.

According to still further another aspect of the present invention, amethod for adjusting an electronic equipment includes the steps of:selecting a specific equipment among a plurality of homogeneousequipments in response to a selection signal; indicating the specificequipment selected in response to the selection signal; and manipulatingthe selected equipment in response to a manipulation signal.

According to the construction and method of the present invention, alarge-sized screen can be provided at a low price and a convenience inuse of the multi-display unit can be improved.

Specifically, since the screen display states of the respectivesmall-sized display units are adjusted using a single key, themulti-display unit can be implemented at a low price and its appearancelooks elegant.

Further, when homogeneous electronic equipments are used closely, therespective electronic equipments are manipulated conveniently and simplyand there is no interference between the equipments.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are included to provide a furtherunderstanding of the invention and are incorporated in and constitute apart of this specification, illustrate embodiments of the invention andtogether with the description serve to explain the principles of theinvention.

In the drawings:

FIG. 1 is a perspective view of a conventional multi-display unit;

FIG. 2 is a block diagram of a conventional multi-display unit;

FIG. 3 is a perspective view of a multi-display unit according to oneembodiment of the present invention;

FIG. 4 is a perspective view of a multi-display unit according toanother embodiment of the present invention;

FIG. 5 is a block diagram illustrating a screen adjusting apparatus of amulti-display unit according to one embodiment of the present invention;

FIG. 6 is a block diagram illustrating a screen adjusting apparatus of amulti-display unit according to another embodiment of the presentinvention;

FIG. 7 is a block diagram illustrating another embodiment of the presentinvention; and

FIG. 8 is a flowchart illustrating a screen adjusting method of amulti-display unit according to the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of the present invention will bedescribed in detail with reference to accompanying drawings.

FIG. 3 is a perspective view of a multi-display unit according to anembodiment of the present invention.

Referring to FIG. 3, the multi-display unit of the present inventionincludes first and second display units 41 and 42 for displayingscreens, a selection button 45 for selecting a specific display unit incase states of the screens displayed on the display units 41 and 42 areadjusted, a manipulation button 44 for manipulating a screen displaystate of the specific display unit selected by the selection button 45,and indication units 43 for indicating the display unit selected by theselection button 45. In addition, the multi-display unit can furtherincludes a single substrate for processing a power, a video signal and amanipulation signal.

Specifically, the indication units 43 may be configured with alight-emitting diode and provided on right and left sides of theselection button 45. Since the indication unit 43 corresponding to theselected display unit emits a light, the user can recognize the selecteddisplay unit more conveniently. The indication units 43 are provided asmany as the display units. For example, if there are four display units,four indication units are provided, so that the user can convenientlyrecognize the selected display unit. The indication units may be formedspaced apart from each other centering on the selection button 45. Inaddition, the indication units may be formed at positions adjacent tothe respective display units.

Specifically, the manipulation button 44 includes several buttons, eachof which carries out each function. For example, a volume button isprovided with a pair of buttons that carry out a volume up/down functionand an additional button for manipulating the respective display unitsis unnecessary.

According to another embodiment of the present invention, the indicationunit 43 can be displayed on the screen of the selected display unit in aform of an on screen display (hereinafter, referred to as an OSD).

In detail, the respective display units can be selected by pushing theselection button 45. The number of cases that can be selected by pushingthe selection button 45 is a sum of the number of the display units, acase that allows all the display units to operate equally at the sametime, and a case that cancels the selection. For example, in case thenumber of small-sized display units is “N”, the number of cases that canbe selected by the selection button 45 is at least “N+2”, that is, a sumof “N”, a case that selects all the display units at the same time, anda case that cancels the selection of all the display units. In addition,the number of cases of the display units that can be selected when theselection button 45 is pushed may be the number of cases of a subsetthat corresponds to the number of small-sized display units. Forexample, in case the number of the display units is three, the number ofcases may be eight, that is, a case that all the display units areselected, a case that no display units are selected, three cases thatonly one display unit is selected, and three cases that two displayunits are selected.

FIG. 4 is a perspective view of a multi-display unit according toanother embodiment of the present invention.

Referring to FIG. 4, the multi-display unit according to anotherembodiment of the present invention is mostly identical to that shown inFIG. 3. A difference is that selection buttons are provided individuallyfor selecting the respective display units. In other words, a leftselection button 46 functions to select a display unit disposed at aleft side from the center of the multi-display unit, and a rightselection button 47 functions to select a display unit disposed at aright side from the center of the multi-display unit. Of course, thenumber of the selection buttons may increase as many as the number ofthe display units.

Herein, an operation of the selection buttons 46 and 47 will bedescribed below.

If the user pushes the selection buttons 46 and 47 for selecting therespective display units to be manipulated, a specific display unit isselected and ready for manipulation. Then, the selected display unit ismanipulated by means of the manipulation button 44. Of course, theindication units 43 for the respective display units are also operated.

FIG. 5 is a block diagram illustrating a screen adjusting apparatus ofthe multi-display unit according to one embodiment of the presentinvention.

Referring to FIG. 5, the screen adjusting apparatus according to oneembodiment of the present invention includes a switching unit 51, aone-chip processor 52 and an image display panel 53. The switching unit51 receives a selection signal for indicating the display unit selectedthrough the selection button 45 by the user, and a manipulation signal,inputted by the manipulation button 44, for manipulating screen size andbrightness and the like. The one-chip processor 52 includes amicroprocessor 521 for driving the respective display unit, an ADC 522,a video scaler 523 and a driver 524, all of which are formed inside onechip. Screen size and brightness displayed according to an output signalof the one-chip processor 52 are adjusted on the image display panel 53.

The screen adjusting apparatus can further include a control panelprovided at the front of the switching unit 51 in order for convertingphysical signals of the selection button 45 and/or the manipulationbutton 44 into predetermined electric signals.

In addition, the one-chip processor 52 is provided by forming aplurality of function blocks, such as the microprocessor 521, the ADC522, the video scaler 523 and the driver 524, inside one chip. Theone-chip processor 52 is a single chip that processes the signals fordriving the image display panel 53.

The switching unit 51 performs a function of connecting a transmissionline to the specific image display panel 53 indicated by the selectionsignal and a function of relaying the manipulation signal.

Meanwhile, an operation state of the indication unit 43 shown in FIG. 3can be manipulated by the control signals outputted from the switchingunit 51 and/or the microprocessor 521. In other words, the display unitselected by the selection button 45 is indicated.

The one-chip processor 52 and the image display panel 53 are provided asmany as the display units. Specifically, the one-chip processor 52 isconfigured to have a plurality of functions inside the single chip,thereby reducing a manufacturing cost of the multi-display unit.

Herein, a screen adjusting method of the multi-display unit shown inFIG. 5 will be described in brief. In case the user intends to adjustthe screen displayed on the display unit, the display unit to bemanipulated is selected by pushing the selection button (45 in FIG. 3)while watching a displayed state of the indication unit (43 in FIG. 3).At this time, the switching unit 51 is controlled by the selectionsignal of the selection button 45, so that a specific display unit isselected and the manipulation signal is transferred thereto.

After a connection line is formed by a control of the switching unit 51,the screen display state of the selected display unit is adjusted by theappropriate manipulation of the manipulation button 44, so that thescreen is set to a desired state. At this time, the manipulation signalof the manipulation button 44 is transmitted through the switching unit51 to the selected display unit alone.

FIG. 6 is a block diagram illustrating a screen adjusting apparatusaccording to another embodiment of the present invention.

Referring to FIG. 6, the screen adjusting apparatus according to anotherembodiment of the present invention includes a microprocessor 61configured to receive a manipulation signal, a switching unit 62configured to receive a selection signal, an ADC 63 for processing animage signal displayed on an image display panel 66, a video scaler 64,and a driver 65. All functions of the ADC 63, the video scaler 64 andthe driver 65 can be implemented inside one chip.

In addition, like the above-described embodiment shown in FIG. 5, eachof the ADC 63 connected to the switching unit 62, the video scaler 64,the driver 65 and the image display panel 66 is provided as many as thedisplay unit.

Herein, a screen adjusting method of the multi-display unit shown inFIG. 6 will be described in brief. In case the user inputs the selectionsignal by means of the selection buttons 45, the selection signal isinputted to the switching unit 62, so that a connection line of aspecific display unit is set to a specific direction.

After the connection line is set toward a specific display unit by acontrol of the switching unit 62, the screen display state of theselected display unit is adjusted by the manipulation of themanipulation button 44. At this time, the manipulation signal inputtedby the manipulation button 44 is transmitted to only the correspondingdisplay unit connected by the switching unit 62, so that the screendisplay state of the corresponding display unit is adjusted. Since onemicroprocessor is used in the screen adjusting apparatus constructed asabove, there is an effect that can reduce the price of the product.

FIG. 7 is a block diagram illustrating another embodiment of the presentinvention. A basic spirit of this embodiment is identical to that of thedescribed-above embodiments. A difference is that the selecting andmanipulating functions are carried out by a remote controller.

Referring to FIG. 7, a remote controller 71 includes at least aselection button and a manipulation button. A wireless receiver 72receives a wireless signal outputted from the remote controller 71. Aplurality of display units 73 receive a selection signal and amanipulation signal, which are outputted from the wireless receptionunit 72, and perform a screen adjustment. The display unit 73 can beconfigured with the same structures shown in FIGS. 5 and 6. Preferably,the transmission/reception between the remote controller 71 and thewireless receiver 72 can be performed through an infrared communication.

It is an object of this embodiment to improve a convenience in case theuser manipulates the screen display state of the display unit at aremote place. Specifically, the selection button for selecting aspecific display unit and the manipulation button for manipulating thescreen display state of the selected display unit are formed on onesurface of the remote controller.

In this embodiment, the user can select the specific display unitthrough the selection button provided at the remote controller. Inaddition, the user can manipulate the screen display state of theselected display unit through the manipulation button provided at theremote controller. Therefore, once single or multiple display units areselected, the screen display states can be manipulated through themanipulation button of the remote controller, thereby improving the userconvenience much more. This can be applied when it is difficult for theuser to directly access the multi-display unit because the user and thedisplay unit are spaced apart from each other by more than apredetermined distance. For example, this embodiment can be applied to acase that the display unit is used for TV.

Meanwhile, the remote controller is configured to select one displayunit among the plurality of display units and manipulate the screendisplay state of the selected display unit. In addition, in order toselect the display unit, the remote controller can select an externalimage system, such as TV, VTR, set-top box and DVD, which is connectedto the display unit.

In other words, in the same manner how a specific display unit among theplurality of display units is selected by the selection signal and theselected display unit is manipulated by the manipulation signal,equipments such as VRT with built-in tuners or a special set-top boxsupporting a plurality of image outputs at the same time can be selectedindividually or wholly by the selection signal of the remote controller.In addition, as the user desires, only the selected image outputterminal can be manipulated by the manipulation signal.

In more detail, as described above, the remote controller can selectother equipments, such as TV, VTR, set-top box and DVD, as well as thedisplay unit. In other words, in the same manner how a specific displayunit among the plurality of display units is selected by the selectionsignal and the selected display unit is manipulated by the manipulationsignal, a specific VTR among a plurality of VTRs is selected by theselection signal and the selected VTR is manipulated by the manipulationsignal as the user desires. Of course, it can be equally applied toother electronic equipments.

For example, when a plurality of equipments (for example, a first VTRand a second VRT) using the same manipulation signal are used at thesame time, a selection button is provided at one side of the remotecontroller. The first equipment and/or the second equipment of the samekind are/is selected according to pushing times and/or pushing durationof the selection button, and only the selected equipment is manipulatedby the manipulation signal. In order for that, a switching unit forperform a switching operation in response to the selection signal can beprovided inside the plurality of equipments using the same manipulationsignal.

In this embodiment, an object of the present invention is different fromthat of a conventional universal remote controller in which the userconvenience is provided by reducing the heterogeneous remote controllersfor different purposes to one remote controller. In other words, in casethe equipments performing the same function are assembled for outputtinga plurality of images, this embodiment can control their manipulationsby means of one remote controller. Therefore, it is possible to preventan interference of similar signals and to efficiently use a frequency.

FIG. 8 is a flowchart illustrating a screen adjusting method of amulti-display unit according to the present invention.

Referring to FIG. 8, the user selects a display unit to be manipulated(ST11). As described in FIG. 3, the screen to be adjusted can beselected according to the pushing times of the selection button (45 inFIG. 3).

After the specific display unit is selected, the indication unit (43 inFIG. 3) is operated to indicate the selected display unit (ST12). Theindication unit is connected with the specific display unit and can beprovided with a light-emitting diode. The user can easily recognize theselected display unit since the light-emitting diode emits a light. Inaddition, the indication unit can be provided with an OSD, which isdisplayed on the selected display unit. Therefore, if the user selects aspecific display unit, the OSD for adjusting a specific screen can bedisplayed on the screen of the selected display unit. Meanwhile, all orsome display units of the multi-display unit can be selected.

The user can select the desired display unit by repeating the abovesteps ST11 and ST12.

After the display unit to be adjusted is selected, the screen displaystate of the selected display unit is adjusted by a manipulation of themanipulation button (44 in FIG. 3) (ST13).

Through the above steps, the screen adjusting method of themulti-display unit is completed.

While the present invention has been described and illustrated hereinwith reference to the preferred embodiments thereof, it will be apparentto those skilled in the art that various modifications and variationscan be made therein without departing from the spirit and scope of theinvention. Thus, it is intended that the present invention covers themodifications and variations of this invention that come within thescope of the appended claims and their equivalents.

INDUSTRIAL APPLICABILITY

According to the present invention, the screens of the multi-displayunit configured with the plurality of small-sized display units can beadjusted conveniently. The screens of the display units can be adjustedat the same time and the screen display states of all or some displayunits can be adjusted equally, thereby improving the user convenience.

In addition, since the number of the buttons for adjusting the screensof the display units is decreased, a manufacturing cost of the displayunit is reduced and an outer appearance of the multi-display unit iselegant.

Further, since the multi-display unit can be manipulated, at the sametime by the remote controller, the utility of the screen adjustingapparatus is expanded to other electronic equipments. As a result, theutility of the present invention is also increased. Furthermore, whenhomogeneous equipments having the same signaling system are used at thesame place and the same time, a specific equipment is selected and themanipulation is performed to only the selected equipment, therebyimproving the user convenience.

1. A screen adjusting apparatus for use in a multi-display unit,comprising: a plurality of image display panels forming themulti-display unit as one assembly; a selection button for selecting aspecific image display panel; a manipulation button for adjusting ascreen of the selected image display panel; and a switching means forreceiving a selection signal from the selection button from theselection signal to select the image display panel and transmitting amanipulation signal of the manipulation button to the selected imagedisplay panel.
 2. The screen adjusting apparatus according to claim 1,further comprising a one-chip processor, wherein the one-chip processorincludes at least a microprocessor and a video scaler in order to adjusta screen display state of the image display panel in response to themanipulation signal, the manipulation signal being relayed by theswitching means and processed by the microprocessor.
 3. The screenadjusting apparatus according to claim 1, further comprising anindication means for indicating the image display panel selected by theselection button.
 4. The screen adjusting apparatus according to claim1, wherein the selection button and/or the manipulation button are/isformed on an outer surface of the multi-display unit.
 5. The screenadjusting apparatus according to claim 1, wherein the selection buttonand/or the manipulation button are/is formed at a remote controller. 6.The screen adjusting apparatus according to claim 1, wherein theselection button is provided with a single button and the specific imagedisplay panel is selected according to pushing times of the selectionbutton.
 7. The screen adjusting apparatus according to claim 1, whereinthere is a selection button provided for each image display panel. 8.The screen adjusting apparatus according to claim 1, further comprisinga light-emitting diode formed on an outer surface of the display unit toindicate the specific image display panel selected by the selectionbutton.
 9. The screen adjusting apparatus according to claim 1, whereinthe manipulation button includes a set of buttons each performingrespective functions.
 10. A screen adjusting apparatus for use in amulti-display unit, comprising: a plurality of image display panelsforming the multi-display unit as one assembly; a manipulation buttonfor transmitting a manipulation signal in order to adjust a screendisplay state displayed on the image display panels; a selection buttonfor selecting a specific image display panel; a switching means forrelaying the manipulation signal to the specific image display panel inresponse to the selection signal; and a microprocessor for processingthe manipulation signal outputted from the manipulation button andtransmitting the processed manipulation signal to the switching means.11. The screen adjusting apparatus according to claim 10, furthercomprising an indication means for indicating the image display panelselected by the selection button.
 12. The screen adjusting apparatusaccording to claim 11, wherein the indication means is a light-emittingdiode formed on an outer surface of the multi-display unit.
 13. Thescreen adjusting apparatus according to claim 11, wherein the indicationmeans is an OSD (On Screen Display), the OSD being displayed on theimage display panel.
 14. A screen adjusting method of a multi-displayunit having a plurality of image display panels, comprising the stepsof: selecting one or more specific image display panels among pluralityof image display panels; changing a display state of an indication meansof the selected image display panel; selecting a specific image displaypanel desired by a user according to the display state of the indicationmeans; and adjusting a screen display state of all selected imagedisplay panels.
 15. The screen adjusting method according to claim 14,wherein the step of selecting the image display panel is carried out byrepeatedly pushing a single selection button.
 16. The screen adjustingmethod according to claim 14, wherein the specific image display panelis selected by an on/off operation of individual selection buttonsmatching with the respective image display panels.
 17. The screenadjusting method according to claim 14, wherein the indication means isformed on an outer surface of the multi-display unit.
 18. The screenadjusting method according to claim 14, wherein the indication means isan OSD, the OSD being displayed on the respective image display panels.19. The screen adjusting method according to claim 14, wherein thescreen adjustment of the image display panel is carried out by a set ofmanipulation buttons.
 20. A screen adjusting apparatus for use in amulti-display unit comprising; a plurality of image display panelsforming the multi-display unit; a selection button for selecting asubset of the image display panels. a manipulation button for adjustingscreens of the image display panels selected by the selection button;and a switching means for transmitting a manipulation signal of themanipulation button to the subset of the selected image display panels.21. The screen adjusting apparatus according to claim 20, wherein theselection button is provided with a single button and cases of thesubset are changed by repeatedly pushing the selection button.
 22. Thescreen adjusting apparatus according to claim 20, wherein the selectionbuttons are individually provided to the respective image displaypanels.
 23. A method for adjusting an electronic equipment comprisingthe steps of: selecting a specific equipment among a plurality ofhomogeneous equipments in response to a selection signal; indicating thespecific equipment selected in response to the selection signal; andmanipulating the selected equipment in response to a manipulationsignal.
 24. The method according to claim 23, wherein the equipmentincludes a switching means for performing a switching operation inresponse to the selection signal.
 25. The method according to claim 23,wherein the electronic equipment is a display unit.
 26. The methodaccording to claim 23, wherein the equipment includes a switching meansfor switching on/off a transmission of the manipulation signal.
 27. Themethod according to claim 23, wherein the selection signal and themanipulation signal are outputted from a remote controller.
 28. Themethod according to claim 23, wherein the selection signal and themanipulation signal are manipulated by a button formed on the equipmentas one body.
 29. The method according to claim 23, wherein the selectionsignal and/or the manipulation signal are/is manipulated by a buttonformed on a remote controller.